Ralph Metzner

Ralph Metzner, Ph.D. "is a psychotherapist and professor at the California Institute of Integral Studies in San Francisco. He has been involved in the study of states of consciousness and their role in psycho-spiritual transformations for over 40 years, ever since collaborating with Leary and Alpert in their Harvard research on "consciousness-expanding" substances such as psilocybin. His books include The Unfolding Self - Varieties of Transformative Experience, Ayahuasca - Human Consciousness and the Spirits of Nature, and Green Psychology - Transforming Our Relationship to the Earth. He is also the founding president of the Green Earth Foundation, an ecological educational organization devoted to healing and harmonizing of the relations between humanity and the Earth."


 * Contributor, to the book Consciousness in Action